Elevator cable equalizer



Aug. 3, 1937. s. A. WHITE 2,089,143

ELEVATOR-CABLE EQUALIZER Filed March 13, 1936 2 Sheets-Sheet l InventorSevern fl. Wlu'ie By flzmaoizmm s 5 Attorneys Aug. 3, 1937.

S. A. WHITE ELEVATOR CABLE EQUALIZER Filed March 13, 1936 2 SheetsSheet2 i: Inventor- Srernfl Wfih'i M 5 Attorneys mung Patented Aug. 3, 1937E5 T E F F ICE ELEVATOR CABLE EQUALIZER 's vern A. White, BaltimoreCounty, Md. Application March 13, 1936, Seria1.No..68,775

4 Claims.

The present invention relates to new and useful improvements inelevators in general and has for its primary object to provide, in amanner as hereinafter set forth, novel means for connecting the multiplecables of an elevator to the car and weights in a manner to maintain auniform load at all times on the several cables.

Another very important object of the invention is to provide anequalizer of the aforemen- 1 tioned character embodying a constructionand arrangement which is such that crystallization of the cables fromtwisting and untwisting will be materially reduced or substantiallyeliminated.

Other objects of the invention are to provide an elevator cableequalizer of the character described which will be comparatively simplein construction, strong, durable, highly efficient and reliable in use,compact, and which may be manufactured and installed at low cost.

All of the foregoing and still further objects and advantages of theinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views, wherein:-

Figure 1 is a view in side elevation of an installation embodying thepresent invention, the cross beams on the roof of the car being shown incross-section.

Figure 2 is a view in horizontal section, taken substantially on theline 2-2 of Figure 3.

Figure 3 is a vertical sectional view, taken substantially on the line33 of Figure 2.

Figure 4 is a fragmentary view in vertical section, taken substantiallyon the line 44 of Figure 2.

Figure 5 is a detail view in bottom plan of the rockable lower plate.

Figure 6 is a detail view in bottom plan of the stationary upper plate.

Referring now to the drawings in detail, it will be seen that thereference numeral I designates a plurality of cables to one end of whichthe usual weights 2 are connected. Connected to the other ends of thecables I is the car 3. Ex-

tending across the top of the car 3 is a pair of spaced, parallel beams4.

The embodiment of the invention which has been illustrated comprises astationary upper plate 5 of suitable metal having a substantiallyconical lower face 6 on the apex of which is an integral ball I. Mountedbeneath the plate 5 is a rockable plate 8 having formed in its upperface a socket 9 for the reception of the ball I.

It will thus be seen that the plate 8 is mounted for universal rockingmovement on the plate 5. The plate 8 further includes reinforcing websI0.

Depending from the lower face of the rockable plate 8 is a plurality ofintegral balls I I on which cross-heads I2 are rotatably and rockablymounted. The cross-heads I2 have formed therein, at intermediate points,sockets I3 which accommodate the balls II. In their end portions thecross-heads I2 have formed therein openings I4 for the passage ofvertical rods I5.

Plates 5 and 8 have openings I6 and I1, respectively, therein throughwhich the rods I5 pass. At their upper ends the rods I5 terminate insockets or the like I8 in which the ends of the cables I are anchored.The lower end portions of the rods I5 are threaded to receive nuts I9.Interposed between nuts I9 and the cross-heads I2 are ball washers 20.The reference numeral 2| designates lock nuts for the nuts I9.

When the equalizers are installed the upper plate 5 is secured in anysuitable manner, as at 22, beneath the beams 4 of the car 3 and to asuitable attaching structure 23 on the weights 2. As is believed to beobvious, the construction and arrangement is such that the load will beequally distributed at all times on the cables I by reason of the factthat the plate 8 and cross-heads I2 are capable of substantiallyuniversal rocking movement. Further, the ball washers 20 permit the rodsI5 to rotate freely thereby allowing the cables I to twist and untwistunder stress, as when starting and stopping, thus substantiallyeliminating crystallizing. Any suitable means may, if desired, beprovided for lubricating the moving parts of the device.

It is believed that the many advantages of an equalizer constructed inaccordance with the present invention will be readily understood andalthough a preferred embodiment of the device is as illustrated anddescribed, it is to be understood that changes in the details ofconstruction and in the combination and arrangement of parts may beresorted to which will fall within the scope of the invention asclaimed.

What is claimed is:-

1. An elevator cable equalizer comprising a stationary plate, asecondplate mounted for universal rocking movement beneath said stationaryplate, cross-heads rockably mounted beneath the second named plate, andmeans for connecting the cables to said cross-heads.

2. An elevator cable equalizer comprising a stationary plate, a secondplate mounted for universal rocking movement beneath said stationaryplate, cross-heads rockably mounted beneath the second named plate, andmeans for connecting the cables to said cross-heads, said meansincluding rods rotatably connected to the crossheads and extendingupwardly therefrom through the first and second named plates.

3. An elevator cable equalizer comprising a stationary plate, a secondplate mounted for universal rocking movement beneath said stationaryplate, a plurality of balls on the lower side of the second named plate,cross-heads rotatably and rockably mounted on said balls, and rodsconnected to said cross-heads on opposite sides of the balls andextending upwardly therefrom through the first and second named platesfor connection with the cables.

4. An elevator cable equalizer comprising a stationary plate, a ballintegral with the lower side of said stationary plate, a second platemounted for substantially universal rocking adjustment beneath thestationary plate, the second named plate having a centrally locatedsocket therein accommodating the ball, a plurality of balls integralwith the lower side of the second named plate, cross-heads rotatably androcka'bly mounted on the second named balls, said cross-heads havingsockets therein at intermediate points accommodating said secondnamedballs, rods extending slidably and rotatably through the first andsecond named plates and through the end portions of the cross-heads,nuts threaded on the lower end portions of said rods, ball washersinterposed between said nuts and the cross-heads, and means on the upperends of the rods for anchoring the cables thereto.

SEVE'RN A. WHITE.

